Automatic hand-firearm.



A. FYRBERG. ,AUTOMATIC HAND FIREARM. ANIMATION FILED sn1 T 25.w14.

Patented Mar. 9, 1915.

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A TTOR/VEYS um runs l um Inma* l I rearms such as shown ansi described 30 fear-end with a permenen head,

ANDREW YRBEM, Wsfm, ESSACHUSETTS, ASS'IGNB T0 WABMHE CBOHB', QF NEW YORK, N. Y.

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etten si Letten: Merit To all whom t meen s 'Be it known the?, Fresnes, a citizen of the niteiil Smiles, ard a resident of Worcester, in the county of Woicesie and Stale of Massachusetts, have inve-meel sa.

new and Improved Automatic Hemi-F 1reml, ofvvliich the following is s full, clem', and ekact description.

The invention relates to automatic iiimd in ille Letters Patent ,of the nited States ,Noi 1,105,416, graned io me on uly lrl.

The object of the present invention is to provide certain new enel useful improve i5 ments in automatic hand earms of the type mentioned, whereby the imeecli lolocl can be readily isconnececl from @ne recoil spring device to :allow of moving 'ibs breech bloei?, rearwardly by hand with a View lo permit the first cartridge in elle magazine to pass to position for being pushed into the barrel on eturning the breech block :m Wlieveby the complete witlnirawal of the breech loloclfL and the firing pin csiiieel thereby can be had for repairs or olier purposes, and whereby the barrel can be quickly and securely las tened in position on the frame.

In order to accomplish the desiied resialt use is made of a breech block provided si its e vieeoil device connected with the said head anni manually controlled means for connect-ing and disconnecting the said breech block heafi relative to the seid recoil evice. lUse is nlso 3", made of a lneecli block pi'oviclecl with a spring-pressed" filing pin enel with a slot, :in abutmcne levev miapeii 'ie project with one end into the seid slet and into the path of the rear end of the firing pin spring, ami e 40 manually controlled means 'for locking and unlocking the seid abiiment leveiu to permit of withdrawing the breech block.

The invention 'further consists of otlei" novel features and psi's and combinations ci the same as will be more fully described hereinafter snai keinen pointed ont in. the claims.

A pracical embociimen of the invention is represeneci in accompanying ruwings forming s. peet of this specilicatien, in

which similsi" liarectes of reference inelicate corresponiii g paires in ell the views,

Figure i is side eleveion oi'- tlie i'iie matic hand lireern wish pafs shown in ses tion; Fig,A E is sn enlarged craze session of the same on the line i2- of Fig. l; ig. is a like view of the saine en the line Sv-3 of Fig. l.; Fig. 4 is a side elevaion of the resi' end of the automatic hand firearm 'with the breech. block perlyvitlidrewn m disconnected from the i'ecoil device; ami Fig. 5 is an enlarged perspecibivc vView of the locking pinfoi' the abutment iever or the ring pin spring.

The frame oi" liemm is provided with an integral 'handle l eonaning he usual removable magazine for carri a stack of cartriges. 'llie freine A is uf'glier provided with a forward projection C having in its top s, ref C into which fits the base D of the bar i D provided Wili 'the usual bore for receiving the cartridges in the usual manner. The rear Wall of the recess C is provided at the top with s cross bar C2 into which fits a groove or 'slet D2 formed in the rear face of `the barrel l) so as to hold the barrel against upward move ment, it being understood that the rear face of the seid barrel fits snugly against the loi'vw Ward face of the casing A, as plainly indim cated in Fig. 1. A screw E extends transversely through the projection C and the base D and screws at its end in one side of the pojecti'on C to quickly lock the base D in position in the projection C on top of which rests the barrel D.

The end of the bore of the barrel is in axial alinement with the breech block F mounted to slide longitudinally in the frame A in' the rear of the barrel D, and in the said breech block F is mounted to slide s .Firing pin G pressed on by e spring H and contvolled by a seal' l mlfiped to be manipulated. from the trigger J in a manner more fully set forth in the patent above Feferre to, so that further description of this par@ of the firearm is not deemed necessei'y. Tlie rear' end of the breech block F is provided with a permanent liead F normally connected Witli a recoil device, preferably in the form of two recoil ms K, mounted to slide longitudinally in upper portion of the frame A directly above flic breech block F ami hence in tlie reef of the barrel l). The forward ends of the recoil rods K 'are pio 4vided with heads lil' ageins; which abut the forwar ens of il resting at their rear ends on elioslflcrs A oimecl m the. top of vthe frame A. The resi* ends ofthe recoil mais K are pfeefieii will transversely ex tending notches K2 adapted to be engaged transversely head F (see Figs. 3 and 4) by a pin N extending and mounted to turn in the of the breech block F. The pin N is rovided in its peripheral face with notches lil adapted to register with the rear ends of the recoil rods K which latter normally7 roject beyond the rear end of the frame to allow the corresponding recesses in the head F to be then engaged by the pin N with a view to fasten the head F to the rear ends of the recoil rods K. One outer end of the locking pin Nis provided with a handle N2 under the control of the operator for turn ing the pin from lookin y into unlocking position or vice versa. W ien the handle N2 is swung rearwardly then the pin N engages notches K2 in the rear e'nds of the recoil rods K to fasten the said recoil rods in position in the head F, but when the handle N2 is swung into a forward position as shown in Fig. al then the notches N register with the rods K and consequently the latter are unlocked and the breech block F can be moved rearwardly without actuating the recoil device, that is without drawing the recoil rods K rearwardly and pressing the springs L thereof. It is understood that this rearward Inovement of the breech block F is desirable when replacing a refilled magazine in position in the handle B, to allow the uppermost cartridge to pass in front of the breech block F to be pushed by the latter into the bore of the barrel D on returning the breech block F to normal forward position. When this has been done the operator swings the handle 'N2 from forward to rearward position to again `fasten the head F and the recoil rods K to gether. It is understood that when the cartridge is red the breech block F moves rearwardly and presses the springs L of the recoil. device to allow another cartridge to pass from the magazine in front-of the breech block for the latter to push the second cartridge into the barrel during the return of the breech block F by the action of the springs L. The pin N is held against withdrawal from the head F by a longitudinal pin N3 driven into the head F and extending through an annular groove N1 formed in the pin N (see Fig. 3), thus allowing turning of the pin N but holding the same against'transverse movement in the head F. A forward movement of the recoil rods K is prevented in case the barrel D is removed by the use of a transverse pin O held in the frame A and engagingY notches Kl formed in the heads K', as plainly shown in Figs. 1 and 2. The arrangement described besides holding the re coil rods K against forward movement also holds the recoil rods K against turning at .the time the breech block head F is disconnected from the rear ends of the recoil rods Kto insure proper registering of the pin N with the notches K2 on returning the breech block F and fastening the head F and the rear ends of the recoil rods K to gether as previously explained. g The rear end of the Vfiring pin spring H abuts against'the upper end of a lever P fulcrumed at P on the rear end of the casing A to permit of swinging the lever P in and out of engagement with the rear end of the firing pin spring H. The lever P is provided with a short knob or fngerpiece P2 extending to the outside of the frame A to permit the operator to. impart 'a swingingmotion to the lever P. The lower end of the lever P is pressed on by av spring Q abutting against the scar I, and the lower terminal of the lever P normally rests against the pe ripheral face of'a transverse pin R mounted to slide transversely in the frame A. The pin R is pressed on by aspring S (see Fig.

5) to hold the peripheral face of the pin normally in position against the lower end of the lever P, and the outwardmovement of the pin R is limited by the head of a screw T screwing in the frame A and engaging a recess R formed in the outer end of the pin R (see Figs. 4 and 5). lThe pin R is provided with a cut-out portion R2 adapted to move into register with the lower end of the lever P on pressing the pinR inward against the tension of its spring S so that the operator can impart a swinging motion o the lever P with a view to disengage the upper end thereof from the rear end of the tiring pin springH whenever it is desired to withdraw the breech block F from the frame for repairs or other purposes. It is understood that the upper end of the lever P' extends through a slot F2 in the breech block F (see Fig. 3) to move into the path of the rear end of the firing pin spring'H, as previously explained. It

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1s also understood that when the pins N and R are in unlocking position and the lever P is swung downward then the breech block F can be pulled completely'r out of the frame A for repairs or other pur-poses. lVhen the pin R, however, is in locked position the lever P is held against swinging and consequently the breech block F can onlv be drawn out partly when the locking pin N is in unlocking position` as previously explained and the breech block cannot drop accidentally out of the frame when in unlocked position. It is further understood that the breech block F.

ing above the said breech block bearing, a barrel held on the said frame in front of the said breech block bearing, a breech block slidable in the said breech block bearing and having at its rear end a fixed head abutting against the rear end of vthe said recoil rod bearingT a spring-pressed recoil rod slidable in the said recoil rod bearing and having its rear end project-ing into the said breech block head, and locking means mounted transversely on the said breech block heed and adapted to be turned normally in opposite directions, the said locking means in one position engaging the said recoil rod to lock the breech block head and the recoil rod together, and the said locking means in another position disengaging the said recoil rod to unlock the breech block head relative to the recoil rod to allow movement of the breech block independently of the recoil rod.

2. lirearin provided with a frame having a breech block bearing and a recoilbrod bearing above the said breech block bearing, a barrel held on the said trame in front of the said breech block bearing. breech block slidable in the said breech block bearing and having at its rear end a fixed head abutting against the rear end of the said recoil rod bearing, a spring-pressed recoil rod slid-able in the said recoil rod bearing and having its rear end projecting into a recess in the said breech block' head., the said rear end of the recoil rod being provided with a notch, a transverse locking pin mounted to turn in the said breech block head and intersecting the said recess. the said pin having a cut-out portieri adapted to register with the said recoil rod to allow the notched end thereof to pass into the recess the said pin on being turned engaging the said notch to fasten the head and recoil rod together, and a handle on one outer end of the said pin to permit of turning the pin into locking or unlocking position.

3, A tirearm provided with a casing having a breech block bore, a breech block slid-- able in the said bore and provided with a firing pin bearing and a slot leading thereto, a recoil device slidable in the said frame, a manually controlled locking device on the said breech block and engaging the seid rccoil device to normally lock the breech block and recoil device togetherga firing pin slidable in the said tiring pin bearing, a spring pressing the said firing pin, and a manually controlled abutment lever fulcrumed on the casing and normally projecting through the said slot into the bearing to form an abutment for the rear end of the said firing pin spring and to prevent the said breech block from falling out of the said bore at the time the breech block is disconnected from the recoil device by the said locking device, the said abutment lever having a ingerpiece extending to the outside of the said casing. D

4, A firearm provided with a casing having a breech block bore, a breech block slidable in the said borel and provided with a firing pin bearing and a slot leading thereto, a recoil device slidable in the said frame, a manually controlled locking device on the said breech block and engaging the said recoil device to normally lock the breech block and recoil device together, a tiring pin slidable in the said firing pin bearing, a spring pressing the said firing pin, a manually controlled abutment lever fulcrumed on the casing and normally projecting through the said slot into the bearing to i m an abutment for the rear end of th dr said firing pin spring and to prevent thesaid breech block from falling out of the said bore at the time the breech block is disconnected from the recoil device by the said locking device, the said abutment lever having a lingerpiece extending to the outside of the said casing, and a locking device engaging the said abutment llever when in one position to normally hold the abutment lever against movement, the last mentioned locking device when in another position allowing the said abutment to swing out of position relative to the firing pin spring and the breech block.

5. A firearm provided with a casing having a breech block bore, a breech block slidable in the said bore and provided With a firing pin bearing and a slot leading thereto, a firing pin slidable in the said firing pin bearing.r a spring,r in the said bearing and pressing thc firing pin, a manually controlled ab utmentlcver fulcrumed on the casing and normally projecting through the said slot into the bearing to form an abutment for the said spring and to prevent the breech block from being drawn out of tbc said bore the said abutment lever having a iingerpiece extending to the outside of the said casing, and a spring-pressed pin mounted to slide transversely in the said casing and normally engaging the said lever to hold the latter against swinging, the said pin having a cut-out portion yadapted to move into register with the said lever on pressing the pin to allow the lever to swing into inactive position relative to the said firing pin spring and breech block.

6. A firearm provided with a frame'hav- 4ing a forward projection a distance from the top of the frame, the said projection being provided with a recess terminating at its forward end a distance from the forward end of the said projection, the rear wall ofthe said recess being provided with an integral cross bar, a barrel adapted to rest on the said projection and abutting with its rear end against the forward end of the frame above the said projection, the

said barrel being provided with a base fitting into said recess, the rear end of said base being provided with a notch fitting the said cross bar the forward wall of the said recess and the forward end of the said base being beveled upwardly and forwardly, and a transverse screw engaging the said barrel base and the said frame projection.

7. A firearm provided with a frame having a recoil rod bearing, a springpressed recoil rod slidable in the said bearing and rovided at its forward end with a head aving a notch opening onto the front face of the said head, the rear end of the said rod projecting beyond the said bearing and havin a notch, a breech block slidable in the said frame and having a head provided with a turnable pin adapted to enga e the notch in the rear end of the recoil ro und il. pin held in the said frame and engaging the notch in the head of the recoil rod to hold the latter against turning at the time the breech block head is disengaged from the rear ends of the recoil rod thesaid notched head moving out of engagement with the said pin on a rearward movement of the said breech block.

In testimony whereof I have signed my name to this specification in the presence of two .subscribing witnesses.

ANDREW F YRBERG. Witnesses WILLIAM I. MCLOUGHLIN, ROBERT E. CAREY.

Copies o! this patent may be obtained tor Ive cents each. by addressing the Commissione! o! Iatents. Washington, D. C. 

